Investigators said the shooting took place as Dequan Donte Anderson was leaving the store to make a cash deposit at an area bank. The gunman followed Anderson, authorities said, and opened his car door, in an attempt to steal the bag of money.

"The employee didn't give up the money bag, and the suspect took out a handgun and shot the employee several times, striking him in his back and other parts of his body. The suspect grabbed the money bag, and took off running with it," said Sgt. M. Brady, Houston Police Department.

Anderson, 20, tried to drive away, but crashed his car into a nearby median, police said.

Several witnesses were interviewed by detectives and said the suspect ran north on Oxford, then got into a dark blue Dodge Avenger.

Police also said there is surveillance video from the Dollar General showing the suspect before he fled.